0.313" OD x 0.049" Wall x 0.214" ID Alloy Steel Round Tube 4130-Cond. N Seamless MPN:21376_72_0
0.313" OD x 0.049" Wall x 0.214" ID Alloy Steel Round Tube 4130-Cond. N Seamless
This 4130 alloy steel round tube is a high-strength, versatile material ideal for fasteners, gears, and structural frames. Its seamless construction and air-hardened heat treatment provide exceptional durability and resistance to wear. With a yield strength of 63,000 psi and a Rockwell hardness of 92 HRB, this tube is perfect for demanding applications. Its compact size and lightweight design make it suitable for a variety of uses, including aerospace, automotive, and industrial equipment. Its machinability and heat treatability also make it a great choice for custom fabrication projects.
Top product features:
- Heat Treatable
- Air-Hardened
- Yield Strength 63,000 psi
Top product applications:
- Fasteners
- Gears
- Structural Frames
Alloy Steel Round Tube, Material Alloy Steel, Material Grade 4130, Fabrication Seamless, Heat Treatable Heat Treatable, Heat Treatment Air-Hardened, Mechanical Finish Mill, Inside Diameter 0.214 in, Outside Diameter 5/16 in, Overall Length 6 ft, Wall Thickness 0.049 in, Yield Strength 63,000 psi, Machinability Not Rated, Rockwell Hardness 92 HRB, Appearance Metallic, Application Fasteners, Gears, Structural Frames, Brinell Hardness 197 BHN
Additional Information
- Country of Origin: ZZ
- Drop Ship Item: Yes
- Blind Ship Eligible: No
- LTL Freight Required: No
- Lead Time: Ships in 2 days
- Minimum Order Quantity: 1
- Unit of Measure: EA
- Package Length: 72.50
- Package Width: 0.81
- Package Height: 0.81
- Package Weight: 0.84
Product info last updated on January 20, 2026 12:03am UTC
Category: Alloy Steel